license

Noun

• the act of giving a formal (usually written) authorization

• excessive freedom; lack of due restraint
  • when liberty becomes license dictatorship is near- Will Durant
    
  • the intolerable license with which the newspapers break...the rules of decorum- Edmund Burke
    

• freedom to deviate deliberately from normally applicable rules or practices (especially in behavior or speech)

• a legal document giving official permission to do something

Verb

• authorize officially
  • I am licensed to practice law in this state
    

Related words

• Synonyms: 
  permission , permit , licence , certify
• Antonyms: 
  decertify , derecognize , derecognise